DroidRooter.A is a binary exploit that is used to gain root privilege on an Android device.
F-Secure SAFE automatically blocks installation of this program.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more assistance.
DroidRooter.A and DroidRooter.B are the 'exploid' and 'rageagainstthecage' ELF binary exploits used by Trojan:Android/DroidDream.A to gain root privilege.
It should be noted that despite listing Linux as platform in the detection name, both programs are binary Android ELF files. And, under certain circumstances, they may be considered as hack-tools, where users might deliberately run the programs to 'jailbreak' their device.